function open_payment() {

    window.location='/eshop/payment/';

}

function open_invoice(id) {

    window.open('/eshop/account/invoice/?id='+id, 'Département Féminin', 'scrollbars=yes, height=800px, width=700px');

}

function open_staff() {

    window.open('/eshop/adm/', 'Département Féminin - Backoffice Gestion');

}